* New Type Serializers
* Delete NetCoordinatesSerializer.cs
* Make EntityCoordinates and MapCoordinates use DataRecord
* Turn them into actual record structs
I'm somewhat surprised the DataRecord attribute doesn't check this
* Allocate MapIds before deserializing components
* Deserialize preallocated ids
* fix map merge assert
* remove old
* Use TryGetMap
* release notes
ac45a0a64b